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/*=========================================================================
Program: Visualization Toolkit
Module: vtkStreamGraph.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#include "vtkStreamGraph.h"
#include "vtkCommand.h"
#include "vtkDataSetAttributes.h"
#include "vtkEdgeListIterator.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkMergeGraphs.h"
#include "vtkMutableDirectedGraph.h"
#include "vtkMutableUndirectedGraph.h"
#include "vtkMutableGraphHelper.h"
#include "vtkObjectFactory.h"
#include "vtkSmartPointer.h"
#include "vtkTable.h"
#include <map>
vtkStandardNewMacro(vtkStreamGraph);
//---------------------------------------------------------------------------
vtkStreamGraph::vtkStreamGraph()
{
this->CurrentGraph = vtkMutableGraphHelper::New();
this->MergeGraphs = vtkMergeGraphs::New();
this->UseEdgeWindow = false;
this->EdgeWindowArrayName = 0;
this->SetEdgeWindowArrayName("time");
this->EdgeWindow = 10000.0;
}
//---------------------------------------------------------------------------
vtkStreamGraph::~vtkStreamGraph()
{
if (this->CurrentGraph)
{
this->CurrentGraph->Delete();
}
if (this->MergeGraphs)
{
this->MergeGraphs->Delete();
}
this->SetEdgeWindowArrayName(0);
}
//---------------------------------------------------------------------------
int vtkStreamGraph::RequestData(
vtkInformation*,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
vtkInformation* input_info = inputVector[0]->GetInformationObject(0);
vtkGraph* input = vtkGraph::SafeDownCast(
input_info->Get(vtkDataObject::DATA_OBJECT()));
// Copy structure into output graph.
vtkInformation* outputInfo = outputVector->GetInformationObject(0);
vtkGraph* output = vtkGraph::SafeDownCast(
outputInfo->Get(vtkDataObject::DATA_OBJECT()));
double progress = 0.1;
this->InvokeEvent(vtkCommand::ProgressEvent, &progress);
// First pass: make a copy of the graph and we're done
if (!this->CurrentGraph->GetGraph())
{
if (vtkDirectedGraph::SafeDownCast(input))
{
vtkSmartPointer<vtkMutableDirectedGraph> g = vtkSmartPointer<vtkMutableDirectedGraph>::New();
this->CurrentGraph->SetGraph(g);
}
else
{
vtkSmartPointer<vtkMutableUndirectedGraph> g = vtkSmartPointer<vtkMutableUndirectedGraph>::New();
this->CurrentGraph->SetGraph(g);
}
this->CurrentGraph->GetGraph()->DeepCopy(input);
if (!output->CheckedShallowCopy(input))
{
vtkErrorMacro("Output graph format invalid.");
return 0;
}
return 1;
}
progress = 0.2;
this->InvokeEvent(vtkCommand::ProgressEvent, &progress);
this->MergeGraphs->SetUseEdgeWindow(this->UseEdgeWindow);
this->MergeGraphs->SetEdgeWindowArrayName(this->EdgeWindowArrayName);
this->MergeGraphs->SetEdgeWindow(this->EdgeWindow);
if (!this->MergeGraphs->ExtendGraph(this->CurrentGraph, input))
{
return 0;
}
progress = 0.9;
this->InvokeEvent(vtkCommand::ProgressEvent, &progress);
output->DeepCopy(this->CurrentGraph->GetGraph());
return 1;
}
//---------------------------------------------------------------------------
void vtkStreamGraph::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "UseEdgeWindow: " << this->UseEdgeWindow << endl;
os << indent << "EdgeWindowArrayName: "
<< (this->EdgeWindowArrayName ? this->EdgeWindowArrayName : "(none)") << endl;
os << indent << "EdgeWindow: " << this->EdgeWindow << endl;
}
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